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aniked [119]
2 years ago
9

THIS IS DUE SOON! PLEASE SOMEONE HELP!!! IM SO CONFUSED!!! SHOW ME STEP BY STEP PLEASE! QUESTION IS IN PICTURE BELOW!

Mathematics
1 answer:
Citrus2011 [14]2 years ago
4 0

Answer:

62.2°

Step-by-step explanation:

formula to count area of triangle

1) √[(s)(s-a)(s-b)(s-c)] , s= (a+b+c)/2

2) 1/2ab sin c

count the area first

s=(8+5+9)/2

=11

area=√[(11)(11-8)(11-5)(11-9)]

= √396

=19.8997

1/2(5)(9) sin c = 19.8997

sin c = 19.8997(2)/45

sin c = 0.8844

c = sin-¹ 0.8844

c = 62.2° (nearest tenth)

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